It's the not-too-distant future, and a metropolis flourishes in the crash site of an alien spacecraft. A-ko, a teenager growing up in this city, enjoys the life of an ordinary schoolgirl... along with incredible superhuman strength! But her carefree days are numbered. Her school rival, B-ko, is not content to live in the shadows any longer. A-ko's superpowers and good fashion sense may not be a match for B-ko's evil genius and Mega-Powered Fighting Robots of Doom!